General information
GRB 260524A was detected by SVOM/ECLAIRs via an on-ground search of event-by-event data (T0 = 2026-05-24T12:01:52 UTC), with best Image Trigger S/N = 9.5 in 4–20 keV over 20.48 s. The reported position is RA=115.192 deg, Dec=-55.287 deg with a 90% confidence radius of 10.1 arcmin.
Wavelength coverage
- X-ray/soft gamma-ray (4–120 keV): SVOM/ECLAIRs detection and spectroscopy reported.
No observations were mentioned in radio, optical/NIR, UV, GeV gamma-ray, or gravitational waves/neutrinos.
Lightcurve and spectrum
- Lightcurve: single peak; duration ~36 s in 4–20 keV; partial pre-trigger emission may be unobserved due to Earth masking.
- Spectrum (T0-32 s to T0+4 s, 5–50 keV): best-fit blackbody with kT = 2.63 +/- 0.27 keV; power-law fit reported as poor.
- Fluence/flux (BB model): 4–120 keV fluence (3.3 +0.2/-0.7)e-7 erg/cm^2; 4–120 keV photon flux 0.63 +0.04/-0.13 ph/cm^2/s.
Redshift
What’s special vs typical
- The spectrum is reported as very soft and suggested to be an X-ray flash, with a blackbody model providing the best fit.